Question

hat is the crystal form of minerals e & f? minerals e & f options: equant, tabular, prismatic, bladed, acicular, fibrous

Explanation:

To determine the crystal form of Minerals E and F, we analyze the visual characteristics:

• Equant: Crystals with roughly equal dimensions in all directions (not matching, as these are elongated).
• Tabular: Flat, plate - like (not matching, as these are needle - like/thread - like).
• Prismatic: Elongated but with more regular prism - like shapes (not as fine and needle - like as shown).
• Bladed: Flat, blade - like (not matching).
• Acicular: Needle - shaped, slender and elongated crystals (the minerals have fine, needle - like/thread - like structures, which fits acicular).
• Fibrous: Formed of fine, thread - like fibers (the minerals' appearance is more like individual needle - like crystals (acicular) rather than a mass of fibers, but among the options, acicular is the best fit for the slender, needle - shaped crystals seen).

Answer:

Acicular (the option corresponding to "Acicular" in the multiple - choice list)